Well-tubing clamp.



No. 834,537. PATENTED OCT. 30, 1906. y B. G. RIGGS.

WELL TUBING CLAMP. I

APPLICATION FILED JAN. 29, 1906.

' I Attom'eys Witnesses t5 Inventor.-

g 3 if? 1 's without 'departin from the spirit or sacrificing. any of thee vantages ofthis invention.

. 13ENJAMIN o. Rises, or KINZUA, PENNS LVANIA.

fWELL-TUBING CLAMP.

Specification of Letters Patent.

" Patented Oct. so, 19cc.

Application filed Januai y 29,1906. Serial No. 298.537-

To all whom it may concern:

Beit known that I, BE JAMIN G. R ses,

. a citizen of the United ,States, residing at Kinzua, in the county of Warren and State of Pennsylvania, have invented new and useiul Well-Tubing Clamps, of which the following is a specification This'invention relates to clamps for welltubes and the like, and has for an object to provide a device 01" the class embodying new and improved features of durability, reliability, utility, and efiiciency.

A further object of the invention is to provide a tube-clam having improved means 'for securing the c amping members together whereby the strain is not borne by a pivotpin. With these and other objects in view the present invention consists in the combination and arrangement of' arts, as will be hereinafter fully describe shown in the accompanying drawings, and particularly pointed out in the appended claims, it being I understoodthat changes in the form, prog s ondin portion, size, and'minor details may be made 11 the drawings, Figure 1 is atopplan View ofthe improved well-tube clamp. Fig. I '2 is a view of the clamp in side elevation.

Fig. 3 is a perspective view of the yoke member of the improved clamp. Fig. 4.is a erspective ,view of the clampin mem er. Fig. 5 is a perspective view of the atch mem- Like characters of reference indicate corre- C7 rawings.

In its preferred embodiment the improved well-tube clamp forming the subject-matter of this application comprises a yoke member 10, having a central aperture 11, lugs 12 at each end which are provided with openings 13 for the attachmentof bails or links for lifting. Atone side of the central aperture 1 1 is a recess 14, extending laterally part way through the yoke member and communicating with the aperture 11. On a plane with the bottom15 ofthe recess 14 is formed an ear 16, and an car 17, spaced from the ear 16, defines the recess 14. Opposite the recess 14 a wedge-shaped slot 18 is formed trans versely of the yoke member and with the bottom 19 on a plane with the bot-tom 15 of the recess.

For cooperation with the yoke member a parts in all of the figures of they member has also an offset clamping member 20 is provided having an car 21 disposed between the ears 16 and 17 and pivoted by the pin 22. The clamping member has an aperture- 23, which complements the aperture '11, forming a circular tube-receiving opening. The clamping V ortion 24, proportioned to engage Within tlie-recess 14, and the end OPPOSItG is beveled, as at 25, to register with one side and'form a continuation of the Wedge-shaped slot 18.

Within and at the narrower end. of the wedge-shaped slot is pivoted a wedge-shaped latch 26, as by the pin 27, and fillin the slot and'bearing a ainst and receiving t e thrust from the beve ed end 25 and transmitting it to the opposite side of the slot. I

From the fore oing-it will be readily seen that while the camping member and latch are for convenience of operation pivoted to the yoke member the strain is not borne entirely on the pins, as one end of theclamping member is en aged back of the ear 17 and the other by the atch 26. The-formation of the latch and slot are such that the strain of the clamping member tends to force the latch against the opposite wall, thus relieving the pin 27 from strain. 4 Having is claime is n 1-. A well-tube clamp embodying a yoke member provided with a recess, a clampin member pivoted to the yoke member an having an offset portion proportioned to fit and engage in the recess and means for holding the clamp closed.

2. A well-tube clamp embodying, a yoke member'provided with-a recess, a clampin member pivoted to the yoke member an having an offset portion proportioned to fit and engage the recess and a latch arran ed ti) engage and hold the clamping mem er 0 ose 3. A. well-tube clamp embodying, a yoke ture and a Wedge-shaped slot u on the oppo-' site side, a clamping member aving a central aperture registerin with the aperture of the yoke to form a tu 'e-receiving opening,

thus described the invention, what ICO a central aperture ITO an oflset formed upon the clamp member and proportioned to engage within the recess,

and a wedge-shaped latch disposed within the slot and proportioned to engage the clamp member and force and hold the ofiset within the recess.

5. A well-tube clamp embodying a yoke member provided with a central aperture and with a recess upon one side of the aperture and a wedge-shaped slot upon the other side, a clamping member pivoted to the yoke and having a central aperture registering with the aperture of the yoke to form a tubereceiving opening an offset formed upon 

